Malicious PDF — malware analysis report

Static analysis result for SHA-256 fade5ec763199875…

MALICIOUS

PDF

359.9 KB Created: 2015-08-24 03:13:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0004bc3caa07ee918c28500425fe7c6c SHA-1: 02bf3cf59e9460c6d3a34ee723002c9cd4d1ff32 SHA-256: fade5ec763199875af3cec7fe445c0e6e718b8bbdff3c123eff4c6efa9161bf4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector infrastructure, disguised with text related to downloading a game. The ML classifier also flagged this PDF with high confidence. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=sonic+adventure+2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%BD%D0%B0+pc+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B0%D1%8F+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4697/4697100_skachat__aimp__5_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695789_signalizaciya__da__vinchi_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693308_promezhutochnaya__attestaciya__po_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000552d3.bin
47daac6ebac3d81691499940c92af84fb983b14021eb4b9d2622b846313822a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x552D3 9672 bytes
font_01_sfnt_off00056d5c.bin
f22b9f51c940c38250d9acd9bf1c365deae365bd8f555dd5274fba924f563d9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56D5C 16696 bytes

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